I am an user of HP Pavilion dv1000 (PR428UA#ABA) Notebook, which is a very primitive model, but after upgrade the RAM to 1GB, I changed the OS from Win XP to Win 7, and this is useful for now. I feel it is faster than when it was on XP.

Sorry that didn't work. I was hoping it would since it was an AC-97 audio driver.

I have one other easy idea you can try.

If you have your notebook connected to the internet, click on the audio device in the device manager. Click on the driver tab. Click on Update driver. Select the automatic search method and I am hoping Windows Update will download and install an audio driver for it.

I am pretty sure your notebook should be able to run Windows 7 including the audio.

If that doesn't work, try this complicated method... modify the XP driver to work in W7...but you should be able to do it. Just follow the instructions carefully:

and add this line under:%*WDM_AMCAUD.DeviceDesc%=WDM_AMCAUD,PCI\VEN_10B9&DEV_5451&SUBSYS_0024103C&REV_02

So the result would look like this:[Conexant]%*WDM_AMCAUD.DeviceDesc%=WDM_AMCAUD,PCI\VEN_1002&DEV_4370&SUBSYS_3091103C%*WDM_AMCAUD.DeviceDesc%=WDM_AMCAUD,PCI\VEN_10B9&DEV_5451&SUBSYS_0024103C&REV_02

Note: Copy this part from the Device Manager> Multimedia Audio Controller>Details>Hardware ID:PCI\VEN_10B9&DEV_5451&SUBSYS_0024103C&REV_02

You may have a slightly different device description. If you want to be sure, go to the device manager, open the unrecognized audio device's property page, select "Details" tab, and select "Hardware Ids" from the Properties drop down list. Copy the top listed hardware ID string, and replace the device description I wrote down above, with the one you see.

So the final result would look like this (if you have a different device description.):[Conexant]%*WDM_AMCAUD.DeviceDesc%=WDM_AMCAUD,PCI\VEN_1002&DEV_4370&SUBSYS_3091103C%*WDM_AMCAUD.DeviceDesc%=WDM_AMCAUD,PCI\VEN_INSERT YOUR DEVICE DESCRIPTION ID

5. Now all you have to do is to install the driver manually through device manager (Driver tab > Update Driver>Select the manual installation method, and browse to the extracted driver folder (sp30399).

You may have to try manually installing it if the auto install doesn't work. You can do this by clicking on the missing audio controller in the device manager. Then click on the driver tab. Click on Update driver. Select the Browse my computer for software method and browse to C:\SWSetup\sp34567. Make sure the Include Subfolders box is checked and see if it loads that way.

You can also try installing it using the auto update if the manual update doesn't work. Maybe windows update has a driver from the windows update site. You will need to be connected to the Internet for the auto update method.

i have a similar problem, but coulndt solve it. i use a hp compaq nx9005 (32bit). after upgrading to windows 7 i couldn find proper drivers for my audio. everything i tried ends with crashes after half a second to maximum 3 minutes (circa) of audioplay. i think i tried all the obvious drivers - that is diverse drivers for xp and vista. i also tried pauls proposal for the mentioned pavilion, editing the qta3091.inf (looking up my device description ID from the device manager).

As I edited the file blindly (i.e. not really knowing what im doing) maybe someone has an idea what other file to edit in what way – fitting to my good old calculating machine.